As you can easily see when you visit LessWrong.com, the site transfer is complete, and we are now on the new URL. The data import will run for the next few hours, and by tomorrow morning everything should be complete.
Let us know if you run into any problems, find any broken links, or anything of that sort!
I would also have said that it seemed quite unlikely, but my perception is that he's had ample opportunity to clarify and has not done so, which leaves me feeling that 'gone Roko' is the most likely conclusion available to me. (I have definitely seen confirmation that he is still around and communicating with others outside of this site, as of today, and is not radiating obvious distress in so doing.)